[mythtv] does Mythmusic audio output use myth library?

[Joseph A. Caputo]

On Monday 17 May 2004 17:17, Ed Wildgoose wrote:
> James Armstrong wrote:
> 
> > I finally got spdif to work in mythtv using ALSA:spdif as the device 
> > with AC3 passthrough disabled. Mythmusic however does not work, 
giving 
> > me a Timeout opening device. A quick glance at the code makes me 
think 
> > mythmusic is doing its own audio processing, not using the newer 
ALSA 
> > direct library that mythtv uses. Can this be confirmed?
> 
> 
> Yep, that's correct.
> 
> It's on my TODO list to merge the two audio layers though.  I have 
been 
> looking at RTAudio as a *really* nice way of doing this.  But it's 
Jack 
> handling doesn't quite work for me.
> 
> Anyway, I have written a Jack output layer, and it makes sense to try 
> and merge all these different audio output layers as far as possible, 
> but it's not entirely trivial because Mythmusic uses some stuff which 
> isn't in the main audio layer (eg larger buffers and an event system 
to 
> supply the visualisations with the samples at the same speed as the 
card).


Wow, JACK output would be cool.  I've yet to play with it myself, but 
AFAIK JACK could give you the ability to watch TV/recordings without 
having to stop a running MythMusic playback, as there would be no audio 
device contention.  I don't know why you'd want to do that... just 'cuz 
you can, I suppose :-)

-JAC